Churn-cover



(No Model.)

A. GUNDERSON.

011mm COVER.

No. 248,453. Patented Oct. 18,1881.

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Owen): hm m m UNITED STATES PATENT OFFICE.

ALBERT GUNDERSON, OFSHABBONA, ILLINOIS.

CHURN-COVER.

SPECIFICATION forming part of Letters Patent No. 248,453, dated October 18, 1881.

Application filed December 27,1880. (No model.) I

To all whom it may concern Be it known that I, ALBERT GUNDERSON, a citizen of the United States, residing at Shabbona, in the county of De Kalb and State of Illinois, have invented certain new and useful Improvementsin Churn-Covers, and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters or figures of reference marked thereon, which form a part of this specification.

Myinvention relates to improvements in rotaryohurns; andit consists,essentially,in providing the mouth of the churn with cork or other elastic packing, which is adapted to receive a locking-cover of novel construction, whereby the churn is rendered air-tight, all as will be hereinafter more fully described, and pointed out in the claim.

In the drawings, Figure 1 represents a perspective view of my invention; Fig. 2, a detail sectional view of the locking-cover and mouth of the churn.

Similar letters of reference occurring on the several figures indicate corresponding parts.

Referring to the drawings, A represents the churn, which is provided upon two sides with projecting lugs or axles B, which are secured to the central part of said churn, as shown.

D represents aframe composed of standards 0 and cross-beam E connecting the two standards, which are forked at their upper ends to receive the axles B of the churn A, as fully shown in Fig.1. Around the upper outside part of the churn is provided a circular band, F, having raised portions a upon its rim, and which are provided with square openings 1), as shown.

G represents an inner circular band, which is so arranged with relation to the outer band, i as to leave a space or recess between the two, in which is provided a cork or other suitable elastic packing, c.

H represents the circular cover, which is provided upon its circumference with a downwardly-projecting flange, d, and with a central locking device, I, which is composed of a central cog-wheel c, journaled in the overlapping bandsf secured to the top of the cover, and wedge-shaped boltsg,havinglugs orserrations it upon their inner ends, which mesh into the cogs of the central wheel, 0, as shown. The ends of the bolts g pass through staples t, attached to a circular rim,J, secured to the outer upper edge of the cover H.

In the operation of my invention the lid or cover H is placed over themouth of the churn with the ends of the wedge-shaped bolts g in juxtaposition with the square openings 1) on the band F, and by turningthe crank L, which operates the cog-wheel'e, the cogs of said wheel push forward the bolts g, which, as they enter the openings I), force the downwardly-projecting flange d of the cover into the elastic packing 0, thereby effectually sealing the contents of the churn. The bolts g are prevented from slipping by means of the clampingscrew n, which passes through the overlapping bands 1'' and rests uponthe top of the wheel 6, and keeps the sarnefrom movingwhen pressed down thereon.

Having thus described my invention, what I claim as new and useful, is-

In arotary churn, the cover H, provided with the flange d and with thelocking deviceI, composed of the central cog-wheel, c, journaled in the bandsf, wedge-shaped bolt g, having lugs h, which engage with the cog-wheel e, in combination with the mouthof the churn A, which is provided with the bands F and G, having an elastic packing, 0, between the two, said band F having slotted lugs to upon its rim forthe rcception of the bolts g of the coverH, substantially as and for the purpose specified.

In testimony whereofl affix my signature in presence of two witnesses.

ALBERT GUNDERSON.

Witnesses:

O. W. HUBBELL, G. W. Krr'rELL. v 

